NOT WITH WAX, AND CLAY

NOT WITH WAX, AND CLAYFor better preservation of volatile liquid vials are usually recommended to clog with wax. However, it is not convenient, if the bubble has to be open often. It is better to use clay: the flagellum from it insulate the tube and eventually condense and thread.

 

A. VINOGRADOV, Mogilev, Belarus

Recommend to read

  • INTELLECTUAL SAU “MSTA-S”INTELLECTUAL SAU “MSTA-S”
    Changed by the early 1980s, the concept of action of artillery on the battlefield demanded not only "increase its power, range, maneuverability." The foundations were laid for integrated...
  • TEREBILO FOR COBSTEREBILO FOR COBS
    "Look through with great interest your section on "Small machines": many useful find here Amateur gardeners. I decided to share a simple tool that has served me faithfully for years is...